4 Pack One Quarter Inch Ball Bearings For Bike Crank Stainless Steel Bottom Bracket Retainer Replacement For Mountain Bikes Built To Last Rust Resistant Heavy Duty Axle And Wheel Frame Bearings

Durable 4-Pack 1/4in Ball Bearings for Bike Cranks
✔️ 4-pack 1/4in bore stainless steel crank bearings, MTB ready

These bearings are stainless steel, corrosion- and rust-resistant, designed as a reliable replacement for worn or damaged bike crank and bottom bracket components, suitable for mountain and road bikes.

✅ OD 45mm (1.77in), ID 31mm (1.22in)
✅ Material: stainless steel, corrosion and rust resistant
✅ Pack size: 4 bearings with 9 balls
✅ Fits: 1/4in bore crank bearings for MTB, road, low-speed bikes
✅ Color: Black

💡 What is a common use for a sealed ball bearing in bike crank and bottom bracket assemblies?

This handy component helps keep crank rotations smooth and components protected in tough riding conditions.

- Replacement for worn crank bearings in MTB and road bikes
- Improves rotation in cranksets and wheel frames
- Designed for 1/4in bore with 9-ball configuration for durability